MediaWeaver Entertainment--a movie, TV and stage production company recently formed by Matt Weaver--has entered into an exclusive production arrangement with Relativity Media, it was announced Thursday by Relativity president Tucker Tooley.

Weaver, who recently sold Dancing With Myself , an original web series, to Yahoo! In association with Relativity chairman Ryan Kavanaugh and the company’s prolific realty TV division RelativityREAL – is expected to bring in, develop and produce film, TV, stage and digital projects.

Weaver conceptualized and is lead producer on the Broadway hit Rock of Ages, which was also produced by Kavanaugh and Relativity co-coo Happy Walters,. It is now in its fourth year and was nominated for five Tony Awards.

Weaver also was a producer on the recent New Line Cinema film adaptation of Rock Of Ages, which starred Tom Cruise and Alec Baldwin, among others. It has grossed a disappointing $50 million worldwide so far.

At New Line, which is a division of Warner Bros., Weaver is also co-producing the comedy We’re The Millers, which is to star Jennifer Aniston, Emma Roberts and Ed Helms. Other producers on that movie are Relativity’s Tooley and Walters.

Weaver is also in active development on Time After Time, directed by Brad Bueker, for Summit Entertainment, which is now a division of Lionsgate.

Weaver said that Relativity has “created an innovative work environment” adding that “we have been collaborating and pooling creative ideas since the moment I arrived at the office.”

“Matt, Happy and I have a longstanding working relationship and have produced many movies together,” said Tooley. “Matt’s creative input and intuition will be an important asset to our team and Relativity’s future growth.”

Weaver’s credits also include the documentaries Jiro Dreams of Sushi and Surfwise, and the independently produced movies Hesher, which starred Natalie Portman and Joseph Gordon-Levitt, as well as Sympathy for Delicious, directed by and starring Mark Ruffalo; Pretty Persuasion starring Evan Rachel Wood; Barry Munday starring Patrick Wilson; the remake of The Heartbreak Kid starring Ben Stiller; and Miramax’s My Baby’s Daddy starring Eddie Griffin.

Weaver got his first show business job at age 17 as an assistant to Jeffrey Katzenberg, and then stayed on to work at Walt Disney Studios for seven years. According to the announcement, Weaver has sold more than twenty movie pitches during his career to Fox, Disney, Universal, Paramount and others.